Strategic Air Command

The Strategic Air Command (SAC) was both a Major Command (MAJCOM) of the United States Air Force and a "specified command" of the United States Department of Defense. SAC was the operational establishment in charge of America's land-based strategic bomber aircraft and land-based intercontinental ballistic missile (ICBM) strategic nuclear arsenal from 1946 to 1992. SAC also controlled the infrastructure necessary to support the strategic bomber and ICBM operations, such as aerial refueling tanker aircraft to refuel the bombers in flight, strategic reconnaissance aircraft, command post aircraft, and, until 1957, fighter escorts.